Bumping-post.



W. M. EVANS.

BUMPING POST.

APPLIOATION Plum JULY 8, 1914.

Patented Mar. 16, 1915.

2 SHEETS'SHEET 1.

6 11 a. 20 H s 6 v V 9 uenkoz WL'lliamJ/LEmm Cl ttomeq W. M. EVANS.

BUMPING POST.

MPLIUA'IION 11.21) JULY 8, 1014.

Patema Mar. 16, 1915.

2 SHEETS'-8HEET 2.

l V l I E uueufor my m Wit Meson 20 provision of a bumping post of this character which is simple in construction, thor-- W'ILLIAM M. EVANS, OF KEARNEY, NEBRASKAv BUMIl,ING-POST.

Specification of Letters Patent.

Patented Mar. 16, 1915.

Application filed July 8, 1914. Serial No. 849,763.

T all whom it may concern:

Be it known that 1, WILLIAM M. EVANS, a citlzen of the United States, residing at Kearney, in the county of Buffalo and State of Nebraska, have invented new and useful a railway car will be absorbed so as to avoid any damage to either the post or the car.'

Another object of the invention is the pro vision of a bumping post wherein the frame structure is materially strengthened and the post will absorb the jar when a. railway car strikes the same, the frame structure and the post being of novel form to assure durability and strength thereto. 7 A further object of the-invention is the oughly reliable and etiicient in its operation, and inexpensive in manufacture.

With these and other objects in view, the invention'consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereunto appended.

In the drawings Fi-gure 1 is a side elevation of a bumping post constructed in accordance with the invention. Fig. 2 is atop plan view thereof. Fig. 25 is an end elevation. Fig. i is an opposite end elevation. Fig. 5 is a vertical longitudinal sectional view through the same. Fig. 6 is a vertical transverse sectional view thereof.

Similar reference characters indicate- .corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, the bumping post comprises a frame, the base sills 5, cross pieces 6 connected thereto, intermediate and outer uprights 7 and 8 respectively, and the plates 9, constituting the frame, the uprights being secured in vertical position in any suitable manner, While the plates 9 are bolted or otherwise fastened thereto. Bolted or otherwise secured to the base sills and to the rearmost uprights 9 are reurwardly inclined brace beams 10, while engaged in the uprights 9 at their upper ends are tie rods 1.], and also passed properly guided through the said uprights are forwardly inclined brace rods 12 which together with the tie rods serve to hold the uprights in rigid position.

Slidably mounted in the front plate 9 is a. plurality of plungers 13, to the front ends of which is fixed a buffer head or post 14, each of the plungers being formed near their front ends with shoulders 15 against "which rests coiled resistance springs 1.6, which latter work against the front plate 9, these springs being coiled about-the plungers 13 and serve to absorb jars against the builer post 14 when a railway car strikes the same. lhe intermediate plunger 13 is formed with a houlder 17 spaced from its rear end, and surrounding said plunger is a coiled eXpansion spring 18 which works against the shoulder 17 at one of its ends,'while its 0p 1 posite end is spaced from the rearmost plate 9, the spring 18 being of less resistance qual ity than any one of the springs 16. Likewise the outer plungers 13 haveformed spaced from their rear ends shoulders 19, and sur rounding the said plungers are coiled resistance springs .20 which bear against the shoulders 19 at their forward ends, while their opposite ends are spaced from an abutment post 21 and a crossbrace 22 respectively, these sprin ance quality than the springs 16 so that on the initial moveinentot the buffer 14 the springs 16 will resist the impact. and thereafter the springs 18 and 90 will come into action to assist in resisting the impact so as to absorb the jar when the railway car strikes the buffer to avoid damage to the said car or the bumping post. -'lhe intermediate plunger 13 is also trained through the abutment post 21, and'the rearplate 9 and the out r plungers 13 are also trained through the abutment post 21 and the cross brace 22 respectively so that they will be during displacement of the buffer 14 when struck by a car.

From the foregoing it is thought that the construction and manner of use of the de 20 being of less resistvice will be clearly understood, and therefore a more extended explanatiouhas been omitted.

What is claimed is': A bumping post comprising a frame, slidable plungers mounted in the said frame, a butler head carried by the plungers, and a plurality of resistance springs arranged in Intestimony whereof I afiix my signature series about the plungers and worlnng tin presence of two witnesses. agamst the same fonabsorbing shocks incident to the displacement of the buffer head, WILLIAM. E 5 one series of resistance springs being of Witnesses:

greater resistance quality than the other se- ALBERT B. Zommrsnn,

ries of. springs. HENRY C. ANDREWS. 

